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体外培养U2OS细胞,通过噻唑蓝(3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltet razolium bromide,MTT)法研究新型聚醚醚酮-羟基磷灰石(polyetheretherketone-hydroxyapatite,PEEK-HA)生物复合材料对细胞增殖的影响.研究发现,聚醚醚酮-磺化聚醚醚酮-羟基磷灰石(polyetheretherketone-sulfnated polyetheretherketone-hydroxyapatite,PEEK-SP